It’s common for some mail-order chicken breeders to throw a thirteenth chick in with every dozen order, and it tends to be something a bit oddball. In this case it was that one there, and for once it’s a hen. She is by far the most shy of the bunch, to the point where sometimes even the leghorns pick on her. She mostly hangs out in the corner; for several months I even fed her separately from time to time though I never saw her driven away from the feeder.
I was told to watch for blue eggs, and sure enough today we got a blue egg.